Coal Fired Boiler Conversion System
The following idea then being a conversion of the existing coal fired boiler system then using a heat exchanger and a heat transfer fluid ( H.T.F. = heat transfer fluid ), to then heat the fluid with an industrial electric furnace then to heat the existing coal fired boiler via heat exchanger to then replace the fuel "coal" completely.... the system will loose efficiency but with free energy there is not a financial loss just in the energy input it will loose a bit in the conversion ie. heating the fluid transfer medium.... The"Gravity Drive" system will produce sufficient electrical current depicted at http://www.designdeskinc.com/gravity-drive.html to then heat the H.T.F. in an electric furnace then causing the coal fired boiler to heat.
Design Desk Inc.